Well, absolutely.
And it's a very sad thing, indeed.
Now, this is the way I see it.
Please be advised that I could be just talking bollocks as this is just the explanation I've come up with in my head.
Webcomic communities have always been like that.
Generally, people are pouring their soul into their work. It becomes an extension of them.
They work very hard without much in return.
For many, they will not find acceptance in an audience. They are being rejected, constantly. So, of course, emotions run high.
When you're down and out, the last thing you want is to be faced with someone successful. It's just human nature.
Unfortunately, if you find success, you have little option other than detaching yourself.
Please, do understand that I have a much darker outlook on life as I suffer from chronic depression, so don't take what I say as balanced, but making friends, in general, in the webcomic community, is not a good idea.
Sure, you will find some great people who will support you and be happy for you. I've been fortunate enough to find a few people like that here. But as a whole, webcomics is a brutally competitive field where visibility is limited.
Whether it actually warrants competitiveness or not, it's debatable, but I would advise against expectations of friendship from the webcomic community, specially if you do better than the rest.
Again, this is just my personal view. I'm neither successful nor particularly good, so my exposure to what you're going through is very limited.